Patents by Inventor Predrag Kostic
Predrag Kostic has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10404624Abstract: A system for lossless switching of traffic in a network device may be implemented when a network switch is integrated into a gateway device, or with any other data source. A processor of the gateway device may receive queue depth information for queues of the network switch. The processor may prevent data from being transmitted to congested queues of the network switch, while allowing data to be transmitted to uncongested queues. In this manner, data loss can be avoided through the network switch for data sourced from the gateway device, such as audio-video data retrieved from a hard drive, audio-video data received from a tuner, etc. Furthermore, re-transmission at higher layers can be reduced. Since the subject system observes congestion for each individual queue, only traffic destined to that particular, congested, queue is affected, e.g. paused. Traffic to non-congested queues is not affected, regardless of traffic class or egress port.Type: GrantFiled: November 5, 2013Date of Patent: September 3, 2019Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITEDInventors: Predrag Kostic, Darren Duane Neuman, David Wu, Anand Tongle, Rajesh Shankarrao Mamidwar, Milomir Aleksic
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Patent number: 9985996Abstract: A device for decoupling audio-video (AV) traffic processing from non-AV traffic processing may include a first processor and a second processor. The first processor may be configured to establish a network connection with a client device, determine whether the network connection is associated with AV traffic, transfer the network connection to a second processor when the network connection is associated with AV traffic, and process non-AV traffic associated with the network connection when the network connection is not associated with AV traffic. The second processor may be configured to receive the network connection from the first processor and process the AV traffic associated with the network connection.Type: GrantFiled: January 9, 2014Date of Patent: May 29, 2018Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventors: Rajesh Shankarrao Mamidwar, Darren Duane Neuman, Flaviu Dorin Turean, David ChaoHua Wu, Anand Tongle, Sanjeev Sood, Prashant Katre, Predrag Kostic
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Patent number: 9712442Abstract: A system for efficient memory bandwidth utilization may include a depacketizer, a packetizer, and a processor core. The depacketizer may generate header information items from received packets, where the header information items include sufficient information for the processor core to process the packets without accessing the payloads from off-chip memory. The depacketizer may accumulate multiple payloads and may write the multiple payloads to the off-chip memory in a single memory transaction when a threshold amount of the payloads have been accumulated. The processor core may receive the header information items and may generate a single descriptor for accessing multiple payloads corresponding to the header information items from the off-chip memory. The packetizer may generate a header for each payload based at least on on-chip information and without accessing off-chip memory. Thus, the subject system provides efficient memory bandwidth utilization, e.g.Type: GrantFiled: November 5, 2013Date of Patent: July 18, 2017Assignee: Broadcom CorporationInventors: David Wu, Darren Duane Neuman, Flaviu Dorin Turean, Rajesh Shankarrao Mamidwar, Anand Tongle, Predrag Kostic
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Publication number: 20160320967Abstract: A system for enhanced resource utilization includes a network interface with access to memory of a device, in communication with an operating system of the device. The system receives, from the operating system, an identification of a predetermined amount of the memory for a packet buffer, store multiple packets in the allocated memory. A total size of the multiple packets is smaller than or equal to the predetermined amount of memory. The system generates a status record for each received packet stored in the allocated memory, and stores the generated status records in the allocated memory. The system also allocates a socket buffer for each packet stored in the allocated memory such that the socket buffer has reference to the corresponding packet in the allocated memory.Type: ApplicationFiled: September 23, 2015Publication date: November 3, 2016Inventors: Predrag Kostic, Milomir Aleksic, Vahid Marandi, Stanley Siu, Ting-Kuo Yu
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Patent number: 9438535Abstract: Methods and systems for a plurality of physical layers for network connection may include coupling a MAC to one of a plurality of PHYs. The coupling to a specific PHY may be based on auto-detection of network activity, or network devices, via the PHYs. Also, one of the PHYs may be coupled to the MAC as a power-up default. The PHYs may be coupled to a same network, by, for example, cables. A first cable to a first PHY may couple it to a first network switch and a second cable to a second PHY may couple it to a second network switch. The first network switch may be rated to handle, for example, a greater data rate than the second network switch. The first cable may not be able to be used as a cable for the second PHY, and vice versa.Type: GrantFiled: August 19, 2013Date of Patent: September 6, 2016Assignee: Broadcom Israel Research, Ltd.Inventors: Eliezer Aloni, Uri Elzur, Predrag Kostic, Klaus Friedrich
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Patent number: 9232284Abstract: A STB resource sharing (RS) group of a home network comprises a plurality of STBs. In the STB RS group, a STB communicates with one or more other STBs to mutually share available device resources comprising hardware and software resources, and/or capabilities. The STB functions as an elected master (EM) or a STB RS client in the STB RS group. As an EM, the STB receives advertisements from other STBs to determine available resources. The determined available resources are announced to other STBs in the STB RS group. The STB manages the use of the determined available resources according to resource sharing requests received from other STBs. As a STB RS client, the STB advertises inherent resources to an EM of the STB RS group. The STB receives announcements from the EM for available resources in the STB RS group. The STB shares its available resources, accordingly.Type: GrantFiled: December 12, 2012Date of Patent: January 5, 2016Assignee: BROADCOM CORPORATIONInventors: Predrag Kostic, Nicos Herodotou, Rajesh Mamidwar, Sanjeev Sood
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Publication number: 20150085863Abstract: A system for efficient memory bandwidth utilization may include a depacketizer, a packetizer, and a processor core. The depacketizer may generate header information items from received packets, where the header information items include sufficient information for the processor core to process the packets without accessing the payloads from off-chip memory. The depacketizer may accumulate multiple payloads and may write the multiple payloads to the off-chip memory in a single memory transaction when a threshold amount of the payloads have been accumulated. The processor core may receive the header information items and may generate a single descriptor for accessing multiple payloads corresponding to the header information items from the off-chip memory. The packetizer may generate a header for each payload based at least on on-chip information and without accessing off-chip memory. Thus, the subject system provides efficient memory bandwidth utilization, e.g.Type: ApplicationFiled: November 5, 2013Publication date: March 26, 2015Applicant: BROADCOM CORPORATIONInventors: David WU, Darren Duane NEUMAN, Flaviu Dorin TUREAN, Rajesh Shankarrao MAMIDWAR, Anand TONGLE, Predrag KOSTIC
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Publication number: 20150081865Abstract: A system for lossless switching of traffic in a network device may be implemented when a network switch is integrated into a gateway device, or with any other data source. A processor of the gateway device may receive queue depth information for queues of the network switch. The processor may prevent data from being transmitted to congested queues of the network switch, while allowing data to be transmitted to uncongested queues. In this manner, data loss can be avoided through the network switch for data sourced from the gateway device, such as audio-video data retrieved from a hard drive, audio-video data received from a tuner, etc. Furthermore, re-transmission at higher layers can be reduced. Since the subject system observes congestion for each individual queue, only traffic destined to that particular, congested, queue is affected, e.g. paused. Traffic to non-congested queues is not affected, regardless of traffic class or egress port.Type: ApplicationFiled: November 5, 2013Publication date: March 19, 2015Applicant: BROADCOM CORPORATIONInventors: Predrag KOSTIC, Darren Duane NEUMAN, David WU, Anand TONGLE, Rajesh Shankarrao MAMIDWAR, Milomir ALEKSIC
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Publication number: 20150071296Abstract: A device for decoupling audio-video (AV) traffic processing from non-AV traffic processing may include a first processor and a second processor. The first processor may be configured to establish a network connection with a client device, determine whether the network connection is associated with AV traffic, transfer the network connection to a second processor when the network connection is associated with AV traffic, and process non-AV traffic associated with the network connection when the network connection is not associated with AV traffic. The second processor may be configured to receive the network connection from the first processor and process the AV traffic associated with the network connection.Type: ApplicationFiled: January 9, 2014Publication date: March 12, 2015Applicant: BROADCOM CORPORATIONInventors: Rajesh Shankarrao MAMIDWAR, Darren Duane NEUMAN, Flaviu Dorin TUREAN, David ChaoHua WU, Anand TONGLE, Sanjeev SOOD, Prashant KATRE, Predrag KOSTIC
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Patent number: 8675655Abstract: The invention relates to a telecommunication network having IP packet-supporting capabilities, which includes a load distribution processing function, either centralized or distributed, by means of which a load distribution function may be applied to sets of paths between network nodes or sets of links of network trunks. The load distribution processing function handles different load distribution functions. Each of the different load distribution functions is associated to a different network input unit involved in the load distribution for a set of paths between network nodes or a set of trunk links. The invention also relates to a method of load distribution in a telecommunication network as summarized above.Type: GrantFiled: October 7, 2002Date of Patent: March 18, 2014Assignee: Alcatel LucentInventors: Peter Irma August Barri, Bart Joseph Gerard Pauwels, Tom Edward Davis, Olivier Didier Duroyon, Chad William Kendall, Predrag Kostic, Robert Nesbitt, Robert Elliott Robotham
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Publication number: 20140006667Abstract: In one embodiment, a method comprising receiving plural packets; and adaptively adjusting a pushtimer timeout value, packet aggregation threshold, or a combination of both based on a change in filtered rate of the received plural packets.Type: ApplicationFiled: June 27, 2012Publication date: January 2, 2014Applicant: BROADCOM CORPORATIONInventors: Lei Sun, Predrag Kostic
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Publication number: 20130336145Abstract: Methods and systems for a plurality of physical layers for network connection may include coupling a MAC to one of a plurality of PHYs. The coupling to a specific PHY may be based on auto-detection of network activity, or network devices, via the PHYs. Also, one of the PHYs may be coupled to the MAC as a power-up default. The PHYs may be coupled to a same network, by, for example, cables. A first cable to a first PHY may couple it to a first network switch and a second cable to a second PHY may couple it to a second network switch. The first network switch may be rated to handle, for example, a greater data rate than the second network switch. The first cable may not be able to be used as a cable for the second PHY, and vice versa.Type: ApplicationFiled: August 19, 2013Publication date: December 19, 2013Inventors: Eliezer Aloni, Uri Elzur, Predrag Kostic, Klaus Friedrich
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Patent number: 8514877Abstract: Methods and systems for a plurality of physical layers for network connection may include coupling a MAC to one of a plurality of PHYs. The coupling to a specific PHY may be based on auto-detection of network activity, or network devices, via the PHYs. Also, one of the PHYs may be coupled to the MAC as a power-up default. The PHYs may be coupled to a same network, by, for example, cables. A first cable to a first PHY may couple it to a first network switch and a second cable to a second PHY may couple it to a second network switch. The first network switch may be rated to handle, for example, a greater data rate than the second network switch. The first cable may not be able to be used as a cable for the second PHY, and vice versa.Type: GrantFiled: December 28, 2006Date of Patent: August 20, 2013Assignee: Broadcom Israel Research, Ltd.Inventors: Eliezer Aloni, Uri Elzur, Predrag Kostic, Klaus Friedrich
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Patent number: 8370881Abstract: A STB resource sharing (RS) group of a home network comprises a plurality of STBs. In the STB RS group, a STB communicates with one or more other STBs to mutually share available device resources comprising hardware and software resources, and/or capabilities. The STB functions as an elected master (EM) or a STB RS client in the STB RS group. As an EM, the STB receives advertisements from other STBs to determine available resources. The determined available resources are announced to other STBs in the STB RS group. The STB manages the use of the determined available resources according to resource sharing requests received from other STBs. As a STB RS client, the STB advertises inherent resources to an EM of the STB RS group. The STB receives announcements from the EM for available resources in the STB RS group. The STB shares its available resources, accordingly.Type: GrantFiled: July 29, 2009Date of Patent: February 5, 2013Assignee: Broadcom CorporationInventors: Predrag Kostic, Nick Herodotou, Rajesh Mamidwar, Sanjeev Sood
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Publication number: 20110030017Abstract: A STB resource sharing (RS) group of a home network comprises a plurality of STBs. In the STB RS group, a STB communicates with one or more other STBs to mutually share available device resources comprising hardware and software resources, and/or capabilities. The STB functions as an elected master (EM) or a STB RS client in the STB RS group. As an EM, the STB receives advertisements from other STBs to determine available resources. The determined available resources are announced to other STBs in the STB RS group. The STB manages the use of the determined available resources according to resource sharing requests received from other STBs. As a STB RS client, the STB advertises inherent resources to an EM of the STB RS group. The STB receives announcements from the EM for available resources in the STB RS group. The STB shares its available resources, accordingly.Type: ApplicationFiled: July 29, 2009Publication date: February 3, 2011Inventors: Predrag Kostic, Nick Herodotou, Rajesh Mamidwar, Sanjeev Sood
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Patent number: 7436770Abstract: The packet rate limiting method and system is used for detecting and blocking the effects of DoS attacks on IP networks. The method uses an ACL counter that stores an action parameter in the first 3 most significant bits and uses 13 bits as a packet counter. A rate limit is enforced by setting the packet counter to an initial value, and resetting this value at given intervals of time. The action parameter enables the ACL to accept or deny packets based on this rate limit. If the number of packets in the incoming flow saturates the packet counter before the reset time, the packets are denied access to the network until the counter is next reset. The denied packets may be just discarded or may be extracted for further examination.Type: GrantFiled: January 21, 2004Date of Patent: October 14, 2008Assignee: Alcatel LucentInventors: Jason Sterne, Adrian Grah, Shay Nahum, Predrag Kostic, Herman Ho Ming Liu
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Patent number: 7328314Abstract: An instruction memory shared by a number of processing units has a plurality of individually accessible sections. A software program in the instruction memory is distributed among the memory sections. Sequential parts of the software program are in sequential sections. The software program may have a common portion which is repeated in each of the memory sections. Arbiter logic may control which of the processing units accesses which of the memory sections in each memory access cycle.Type: GrantFiled: June 19, 2002Date of Patent: February 5, 2008Assignee: Alcatel-Lucent Canada Inc.Inventors: Chad Kendall, Predrag Kostic, Robert Elliott Robotham
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Publication number: 20070165663Abstract: Methods and systems for a plurality of physical layers for network connection may include coupling a MAC to one of a plurality of PHYs. The coupling to a specific PHY may be based on auto-detection of network activity, or network devices, via the PHYs. Also, one of the PHYs may be coupled to the MAC as a power-up default. The PHYs may be coupled to a same network, by, for example, cables. A first cable to a first PHY may couple it to a first network switch and a second cable to a second PHY may couple it to a second network switch. The first network switch may be rated to handle, for example, a greater data rate than the second network switch. The first cable may not be able to be used as a cable for the second PHY, and vice versa.Type: ApplicationFiled: December 28, 2006Publication date: July 19, 2007Inventors: Eliezer Aloni, Uri Elzur, Predrag Kostic, Klaus Friedrich
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Patent number: 7173908Abstract: A policing technique for a telecommunications traffic of variable length packets is described. The technique uses a plurality of police engines, grouped in pairs. A selection module selects a police engine pair to process a packet. Each police engine contains a conformance unit, credit unit and a debit unit, in which the credit update of one police engine influences the credit update of the other police engine in the pair. The technique also uses a combinatorial function to decide on a category of a processed packet and which police engines to update their debit units.Type: GrantFiled: July 8, 2002Date of Patent: February 6, 2007Assignee: Alcatel Canada Inc.Inventors: Tom Davis, Predrag Kostic
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Publication number: 20050157647Abstract: The packet rate limiting method and system is used for detecting and blocking the effects of DoS attacks on IP networks. The method uses an ACL counter that stores an action parameter in the first 3 most significant bits and uses 13 bits as a packet counter. A rate limit is enforced by setting the packet counter to an initial value, and resetting this value at given intervals of time. The action parameter enables the ACL to accept or deny packets based on this rate limit. If the number of packets in the incoming flow saturates the packet counter before the reset time, the packets are denied access to the network until the counter is next reset. The denied packets may be just discarded or may be extracted for further examination.Type: ApplicationFiled: January 21, 2004Publication date: July 21, 2005Applicant: AlcatelInventors: Jason Sterne, Adrian Grah, Shay Nahum, Predrag Kostic, Herman Liu